无法使用nodemailer (gmail)启动邮件线程（回复邮件）

Question

我正在使用nodemailer发送电子邮件。但我想发送邮件回复（开始一个新线程）。我尝试使用以下代码发送邮件回复

var nodemailer = require('nodemailer');

const subject = 'Hey I am test';

var transporter = nodemailer.createTransport({
  service: 'gmail',
  auth: {
    user: '*******',
    pass: '*******'
  }
});

const mailOptions = {
  from: '[email protected]',
  to: '[email protected]',
  subject,
  text: 'Body',
};

transporter.sendMail(mailOptions, function (error, info) {
  if (error) {
    console.log(error);
  } else {
    console.log(info.messageId);
    const threadOptions = {
      from: '[email protected]',
      to: '[email protected]',
      subject:'Re: ' + subject,
      text: 'This is reply',
      inReplyTo: info.messageId,
      references: [info.messageId]
    };
    transporter.sendMail(threadOptions);
  }
});

但是它正在作为新邮件发送。在doc中提到使用inReplyTo和references字段将启动一个新线程。但它不起作用

任何一点帮助都会非常感激

Answer 1

回复邮件的

1. Subject

   应与发送邮件的

   Subject

   相同。当回复邮件的主题与您已回复的邮件相同时，回复邮件将在之前发送的邮件的线程中

2. 您必须定义您要回复的电子邮件帐户的凭据

抱歉我的英语不好

Answer 2

经过大量研究，我认为这个链接可以提供帮助：https://stackoverflow.com/a/2429134/8270395。 也看看这个：给自己发送一封电子邮件，但让我回复另一封电子邮件。

希望这有帮助。

Answer 3

回复电子邮件的主题应保持不变，与原始电子邮件的主题一致。如果回复的主题与要回复的电子邮件的主题相匹配，则回复将正确地串入上一个电子邮件对话中。

    const nodemailer = require("nodemailer");

    // Create a Nodemailer transporter
    let transporter = nodemailer.createTransport({
      host: "smtp.example.com",
      port: 587,
      secure: false, // true for 465, false for other ports
      auth: {
        user: "[email protected]",
        pass: "your-password",
      },
    });

    // Email content
    let mailOptions = {
      from: "[email protected]", // sender address
      to: "[email protected]", // list of receivers
      subject: "Testing Nodemailer with advanced fields",
      text: "Hello, this is a test email!",
      sender: "[email protected]", // Appears in Sender: field
      replyTo: "[email protected]", // Appears in Reply-To: field
      inReplyTo: "<[email protected]>",
      references: ["<[email protected]>", "<[email protected]>"],
      envelope: {
        from: "[email protected]",
        to: "[email protected]",
      },
    };

    // Send email
    transporter.sendMail(mailOptions, (error, info) => {
      if (error) {
        console.log("Error occurred:", error.message);
        return;
      }
      console.log("Email sent successfully!");
    });